Hi, have a new to me, a 2009 2400. Have a couple of questions. The macerator pump started and the stopped. Tried to turn the screw. No luck. Is there a fuse or circuit breaker on the pump? How can I make the cab radio work when the ignition is off? With the queen electric bed, what do you use a s a mattress pad that stay in place all night? Feel free to contact me at markphanlon@bellsouth.net. My home base is Stuart, Florida. A sincere thanks.

You should be able to turn the screw to free up the impellers. If they don't turn then try putting a little water into the gray water tank and opening the valve. Let it soak for a few hours, then try again. Just keep working it until it frees up. Otherwise you might have something hard like a screw in there. Then you will have to take the pump apart.